Hancha Bloghttps://hanchagroup.wordpress.com
Fri, 18 Aug 2017 03:01:39 +0000enhourly1http://wordpress.com/https://secure.gravatar.com/blavatar/ea1564524b95855844c45159753278c4?s=96&d=https%3A%2F%2Fs2.wp.com%2Fi%2Fbuttonw-com.pngHancha Bloghttps://hanchagroup.wordpress.com
Updateshttps://hanchagroup.wordpress.com/2015/03/08/updates/
https://hanchagroup.wordpress.com/2015/03/08/updates/#respondSun, 08 Mar 2015 15:03:31 +0000http://hanchagroup.wordpress.com/?p=783]]>Hancha Group now operates under Velox Motorsports. We have released a few products and many more are close to being released. Come check it out!

]]>https://hanchagroup.wordpress.com/2015/03/08/updates/feed/0paulwlucasFinal Information on Team Pure Precision GTihttps://hanchagroup.wordpress.com/2013/07/15/final-information-on-team-pure-precision-gti/
https://hanchagroup.wordpress.com/2013/07/15/final-information-on-team-pure-precision-gti/#respondMon, 15 Jul 2013 03:11:39 +0000http://hanchagroup.wordpress.com/?p=773]]>This work has been completed a while ago, apologies for just now sharing the work. The data will not be posted since it is proprietary to the team, however I can share some information and some of the post-processing work.

At first, we had to create a car model for the cfd work. We started off with just a plain GTi model and started work on making it resemble their current race car. I changed out the front bumper and added fender flares. I also modeled up the rear wing and located it on the car. The exact profile of the airfoil is proprietary so that cannot be shared, sorry. The wheels were then modeled up and placed on the car setting the ride height.

The car model was then analysed using CFD. Multiple runs were completed to capture the aero balance (with no splitter) at different rear wing angles. Different splitter designs were then analysed to meet the requested aero balance at a certain rear wing angle. Multiple iterations of different splitter designs were made and some tweaking was done on the final design. Then the aero balance and total downforce could be changed by adjusting the rear wing angle. This is not optimum, but it was a good choice for this type of race car.

Below is one of the options tested.It is a splitter with side plates. You can see the pressure plot on the car (red is high pressure, blue is low pressure) and velocity streamlines (red is high velocity, blue is low velocity).

The last picture is of the final design. This design was chosen since it met the criteria for front downforce to achieve the aero balance requested and had the least amount of drag. The drag was decreased on this design since the entire front wheels are covered. This design is not perfect (what is?) and could be improved. Basically time ran out for improvements since the car had to start track testing.

Below is the car in its final form.

-Paul

]]>https://hanchagroup.wordpress.com/2013/07/15/final-information-on-team-pure-precision-gti/feed/0paulwlucassplitter_referencehancha_003_w_hstreamline_004_hhancha_010_w_hgti_current_002_w_hancha901821_580234605327550_1268998885_oHancha BRZ/FR-S/GT86 Front Bumper Designhttps://hanchagroup.wordpress.com/2013/05/31/hancha-brzfr-sgt86-front-bumper-design/
https://hanchagroup.wordpress.com/2013/05/31/hancha-brzfr-sgt86-front-bumper-design/#respondFri, 31 May 2013 17:59:50 +0000http://hanchagroup.wordpress.com/?p=763]]>Lawrence has been hard at work to get started on our front bumper design. This is what he’s done so far. This is not a final design, we are going to keep tweaking the aesthetic, then run it in OpenFoam to get the results, then tweak it a bit more based on our results.

]]>https://hanchagroup.wordpress.com/2013/05/31/hancha-brzfr-sgt86-front-bumper-design/feed/0hanchagroup95-uRHlBaBl6nxmdHc4nfiBx3LQ8e1YliaZPfwrPMnwfXrr9c1jecPPY8q8fNq_GE9njF63-tO3gNU0P15odQows_Qxlv17oiCSyNG9J7noXW5Dqy1_nEVaF5mBr04BdMIndy 500https://hanchagroup.wordpress.com/2013/05/19/indy-500/
https://hanchagroup.wordpress.com/2013/05/19/indy-500/#respondSun, 19 May 2013 17:33:20 +0000http://hanchagroup.wordpress.com/?p=760]]>Best of luck to Zach, our resident electrical engineer, who’s been promoted to being the lead DAG for the #60 Sunoco car for the Indy 500 this year.]]>https://hanchagroup.wordpress.com/2013/05/19/indy-500/feed/0hanchagroup978034_10151415333589117_1081074414_oOur Splitters are Bulletproofhttps://hanchagroup.wordpress.com/2013/05/19/our-splitters-are-bulletproof/
https://hanchagroup.wordpress.com/2013/05/19/our-splitters-are-bulletproof/#respondSun, 19 May 2013 17:10:40 +0000http://hanchagroup.wordpress.com/?p=756]]>

To visually show the strength of Tegris, we decided to shoot it.

]]>https://hanchagroup.wordpress.com/2013/05/19/our-splitters-are-bulletproof/feed/0hanchagroupMidwest Tourhttps://hanchagroup.wordpress.com/2013/05/17/midwest-tour/
https://hanchagroup.wordpress.com/2013/05/17/midwest-tour/#respondFri, 17 May 2013 03:38:49 +0000http://hanchagroup.wordpress.com/?p=742]]>So I’ve been travelling the Midwest the past few days to visit some of our manufacturers. First, I went to see our suspension parts being made. They have a large facility with a lot of CNC 3 and 5 axis machines, lathes, mills, benders, water jet, and welding stations. This is only about 1/3 of the whole shop floor.

They can do just about anything you can think of

Being able to do MIL-spec work, they are certified in just about every material, which shows in the stock they have

I have been discussing with them the idea of building our radiators and oil coolers. They showed me the Denso core we would end up using for the FR-S/BRZ/GT86.

Then I went to visit our in autoclave composite manufacturer. The tool for our SEW V2

Their large autoclave is 10’x20′, and is one of the largest in the country.

They work with teams at the highest levels of racing in the US as can be seen here

Since they had a bunch of defense projects laying around, I wasn’t able to take more pictures due to security reasons. Then, I got to catch up with some of my old college friends and was told they were going to a 7 post rig test at ARC, so I watched that as well.

ARC also has a wind tunnel testing facility, but the team I was visiting didn’t have any wind tunnel time booked, so I didn’t get to see that. Because the body panels were off the car and the guts were exposed, I couldn’t get any pictures of the car on the rig. Sorry. It’s been a very enlightening last few days, but I can’t wait to get back home tomorrow.

I stopped by our manufacturer’s shop today and got a short clip of the LCA being milled.

]]>https://hanchagroup.wordpress.com/2013/05/14/lower-control-arm-machining/feed/0hanchagroupInitial Front Lip Designhttps://hanchagroup.wordpress.com/2013/05/06/initial-front-lip-design/
https://hanchagroup.wordpress.com/2013/05/06/initial-front-lip-design/#respondMon, 06 May 2013 17:23:25 +0000http://hanchagroup.wordpress.com/?p=731]]>The initial design of the lip until Paul refines it through CFD. We are aiming to design something very simple and clean to keep with the OEM body lines. The lip will mount to the holes in the factory bumper so there won’t be any cutting, trimming, or drilling involved.

We got our hands on some OEM bumpers and I will begin designing a lip kit shortly and Paul will tweak it based on his CFD results. Lawrence will get started on designing our aero kit shortly, but here is the basic concept

We wanted to create something simple and clean. For BRZ owners, you will be able to retain the DRL (since it’s one of the coolest features). For FR-S owners, you can retrofit BRZ DRLs or use one of the optional covers we will make. The front bumper will cover the bumper beam as well as have a lower, flatter, even chin for a cleaner look

There also be an optional lip as well as splitter available. The pieces will be made of fiberglass, but we may offer a carbon fiber option. We are still working on designing the rear bumper and diffuser concept.

]]>https://hanchagroup.wordpress.com/2013/05/02/aero-development-begins/feed/0hanchagroup475248_195567893924622_787352054_oShort Fusehttps://hanchagroup.wordpress.com/2013/04/27/short-fuse/
https://hanchagroup.wordpress.com/2013/04/27/short-fuse/#respondSat, 27 Apr 2013 22:11:13 +0000http://hanchagroup.wordpress.com/?p=719]]>Today I took the day to work on one of my personal project cars. It had an electrical issue and I didn’t have the time or will power to work on the car until today. I replaced the alternator, belt, and battery last fall but the battery wouldn’t hold a charge. Today I found out why.

The wire from the alternator separated completely from the contact. It didn’t stop there

The fuse was also broken. I suspect that this is because the previous owner had upgraded the OEM alternator to a GM 1-wire but I had no idea what the amperage output was when I replaced it. So now I’m off to buy a new fuse and charge the battery. Hopefully it’ll start up so I can drive it around a bit.